<template>
  <div>
    <el-card class="box-card">
      <div slot="header" class="clearfix header-box">
        <span>文章分类</span>
        <el-button type="primary" size="mini" @click="dialogVisible = true"
          >添加分类</el-button
        >
      </div>
      <!-- data：要渲染的数据，必须是一个数组 -->
      <el-table stripe border :data="cateList" style="width: 100%">
        <!-- prop 指定要渲染的数据属性名 -->
        <el-table-column  width="50" label="序号" type="index">
        </el-table-column>
        <el-table-column prop="cate_name" label="分类名称"> </el-table-column>
        <el-table-column prop="cate_alias" label="分类别名"> </el-table-column>
        <el-table-column label="操作">
          <template v-slot="scope">
            <el-button
              size="mini"
              type="primary"
              @click="showEditDialog(scope.row)"
              >修改</el-button
            >
            <el-button size="mini" type="danger" @click="hDel(scope.row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <el-dialog title="添加文章分类" :visible.sync="dialogVisible" width="35%">
      <el-form
        :model="addForm"
        :rules="addRules"
        ref="addRef"
        label-width="70px"
      >
        <el-form-item label="分类名称" prop="cate_name">
          <el-input
            v-model="addForm.cate_name"
            minlength="1"
            maxlength="10"
          ></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="cate_alias">
          <el-input
            v-model="addForm.cate_alias"
            minlength="1"
            maxlength="15"
          ></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="mini">取 消</el-button>
        <el-button type="primary" @click="submit" size="mini">确 定</el-button>
      </span>
    </el-dialog>

    <el-dialog title="修改文章分类" :visible.sync="editVisible" width="35%">
      <el-form
        :model="editForm"
        :rules="addRules"
        ref="editForm"
        label-width="70px"
      ><!-- 修改的名单 -->
        <el-form-item label="分类名称" prop="cate_name">
          <el-input
            v-model="editForm.cate_name"
            minlength="1"
            maxlength="10"
          ></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="cate_alias">
          <el-input
            v-model="editForm.cate_alias"
            minlength="1"
            maxlength="15"
          ></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editVisible = false" size="mini">取 消</el-button>
        <el-button type="primary" @click="hEdit" size="mini">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'ArtCate',
  data () {
    return {
      cateList: [],
      dialogVisible: false,
      editVisible: false,
      addForm: {
        cate_name: '',
        cate_alias: ''
      },
      editForm: {
        cate_name: '',
        cate_alias: ''
      },
      addRules: {
        cate_name: [
          { required: true, message: '请输入分类名称', trigger: 'blur' },
          {
            pattern: /^\S{1,10}$/,
            message: '分类名必须是1-10位的非空字符',
            trigger: 'blur'
          }
        ],
        cate_alias: [
          { required: true, message: '请输入分类别名', trigger: 'blur' },
          {
            pattern: /^[a-zA-Z0-9]{1,15}$/,
            message: '分类别名必须是1-15位的字母数字',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  created () {
    this.loadCateList()
  },
  methods: {
    async loadCateList () {
      const { data: res } = await this.$http.get('/my/cate/list')
      this.cateList = res.data
      // console.log(res)
    },
    showEditDialog (row) {
      if (row.id === 1 || row.id === 2) return this.$message.warning('管理员不允许修改该分类!')
      // console.log(row)
      // 做一次深拷贝
      this.editForm = { ...row }
      this.editVisible = true
    },
    submit () {
      this.$refs.addRef.validate(async (valid) => {
        if (!valid) return

        const { data: res } = await this.$http.post(
          '/my/cate/add',
          this.addForm
        )
        if (res.code !== 0) this.$message.error(res.message)
        this.$message.success(res.message)
        this.dialogVisible = false
        this.$refs.addRef.resetFields()
        this.loadCateList()
      })
    },
    hEdit () {
      // 1.兜底校验
      this.$refs.editForm.validate(async (valid) => {
        if (!valid) return
        // 2.发送请求
        const { data: res } = await this.$http.put(
          '/my/cate/info',
          this.editForm
        )
        // 3.根据结果提醒用户
        if (res.code !== 0) return this.$message.warning(res.message)
        this.$message.success(res.message)
        // 4.关闭
        this.editVisible = false

        // 5.重新获取分类列表
        this.loadCateList()
      })
    },
    // 根据 Id 删除文章分类
    hDel (id) {
      if (id === 1 || id === 2) return this.$message.warning('不允许删除')
      this.$confirm('真实要删除吗', '提示', {
        type: 'warning'
      }).then(async () => {
        // 发请求 delete get 这两个 api 第二个参数都是 config 配置对象
        // put post patch 这三个 api 第二个参数都是data
        const { data: res } = await this.$http.delete('/my/cate/del', { params: { id } })
        if (res.code !== 0) return this.$message.error(res.message)
        this.$message.success(res.message)
      }).catch(() => {})
      // 在重新渲染更新列表

      this.loadCateList()
    }
  }
}
</script>

<style lang="less" scoped>
.header-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
</style>
